Question about Toshiba 20HLV86 Television

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Toshiba 20hlv86-No picture

Given a Toshiba 20hlv86 by friend, but the unit has no picture, no menu, although the screen lights up.

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SOURCE: Toshiba 20hlv86 TV/DVD Combo - DVD not working (not spinning up)

maybe the pick-up has gone,or dirty len?spin motor gone?
1,clean the len
2,replace the spin motor which hold disc
3,replace the pick-up assembly

Posted on Mar 30, 2009

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If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

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I have a Toshiba Regza 32lv 703G lcd tv. I switched it on and I have lost my colour. It only displays in black and white although the menu screen is till displaying in colour. Kindly advise. Thanks!


It is pretty much junk, sorry to say it but your picture tube went out and it is cheaper to buy a new t.v. My grandpa use to fix them for us for free but he passed:( If you call some where see how much they would charge for a picture tube, I bet it's expensive???

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When picture goes away do you see the screen still emitting light or does it go completely blank?

Depending on the answer there are two possiblities:

if the screen goes completely blank then the problem is likely in the TV's inverter and more specifically very likely in some of the high-frequency transformers. Best solution there is replacement.
Unfortunately inverters are often on one board with power in smaller TVs.

if the screen is still emitting light albiet being blank then the problem is more likely in the main board and, less often, in a cable.

Main boards often overheat and ICs relying on soldering contact bonds of 1/10 sq.mm. start misbehaving in all kinds of ways , including like you describe.

There's no simple cure for that problem - usually it's cheaper to replace the whole board or even the whole TV than to troubleshoot it.

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http://www.coppelltvrepair.com

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maybe the pick-up has gone,or dirty len?spin motor gone?
1,clean the len
2,replace the spin motor which hold disc
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